| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | seven years [unc] [noun] | 45 |
|
| 2 | [prep] seven years [unc] | 27 |
|
| 3 | [prep] years [unc] [noun] | 22 |
|
| 4 | [prep] seven years [noun] | 17 |
|
